merge with 3.3
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d1830c422d
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@ -598,10 +598,10 @@ the help options::
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>>> parser = argparse.ArgumentParser(prog='PROG', prefix_chars='+/')
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>>> parser.print_help()
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usage: PROG [-h]
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usage: PROG [+h]
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optional arguments:
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-h, --help show this help message and exit
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+h, ++help show this help message and exit
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The add_argument() method
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